;;; sha1.el --- SHA1 Secure Hash Algorithm in Emacs-Lisp
;; Copyright (C) 1999, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Author: Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
;; Keywords: SHA1, FIPS 180-1
-;; This file is part of FLIM (Faithful Library about Internet Message).
+;; This file is part of GNU Emacs.
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 3, or
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
-;; This program is distributed in the hope that it will be useful,
+;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with this program; see the file COPYING. If not, write to
-;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
:group 'extensions)
(defcustom sha1-maximum-internal-length 500
- "*Maximum length of message to use Lisp version of SHA1 function.
+ "Maximum length of message to use Lisp version of SHA1 function.
If message is longer than this, `sha1-program' is used instead.
If this variable is set to 0, use external program only.
:group 'sha1)
(defcustom sha1-program '("sha1sum")
- "*Name of program to compute SHA1.
+ "Name of program to compute SHA1.
It must be a string \(program name\) or list of strings \(name and its args\)."
:type '(repeat string)
:group 'sha1)
(defcustom sha1-use-external (condition-case ()
(executable-find (car sha1-program))
(error))
- "*Use external SHA1 program.
+ "Use external SHA1 program.
If this variable is set to nil, use internal function only."
:type 'boolean
:group 'sha1)
(defun sha1-string-external (string &optional binary)
- (let (prog args digest default-enable-multibyte-characters)
+ (let ((default-directory "/") ;; in case otherwise non-existent
+ (process-connection-type nil) ;; pipe
+ prog args digest)
(if (consp sha1-program)
(setq prog (car sha1-program)
args (cdr sha1-program))
(setq prog sha1-program
args nil))
(with-temp-buffer
+ (unless (featurep 'xemacs) (set-buffer-multibyte nil))
(insert string)
(apply (function call-process-region)
- (point-min)(point-max)
+ (point-min) (point-max)
prog t t nil args)
;; SHA1 is 40 bytes long in hexadecimal form.
(setq digest (buffer-substring (point-min)(+ (point-min) 40))))
(provide 'sha1)
-;; arch-tag: c0f9abd0-ffc1-4557-aac6-ece7f2d4c901
;;; sha1.el ends here